Merge pull request #243 from nimiq/api

Help page and ending slashed fixed
Travis-ci: configuration setup
Blank commit to launch the first Travis-CI build
Add entries to gitignore

Common machine-specific files for settings, requirements and logger have been added to
.gitignore.
Travis-CI: test against different Django versions
.travis.yml ready for Django 1.7 and Python 3.3
Add Travis-CI build status image
bugfixes for the email importer
bugfixes to mbox importer
Merge branch 'api'
datadump update
updated selenium tests, final tweaks to multi tag filtering
improvements to mbox importing and tagging
fix for unclosed <a> tag
Merge branch 'master' of https://github.com/ialbert/biostar-central
Merge branch 'master' of https://github.com/ialbert/biostar-central into neurostars-theme
Merge branch 'master' of https://github.com/ialbert/biostar-central into travis-ci
Merge branch 'travis-ci' of https://github.com/nimiq/biostar-central
Merge branch 'master' of https://github.com/ialbert/biostar-central
Merge branch 'master' into develop